Dural Ectasia
Pronunciation: DOO-ral ek-TAY-zee-ah
Abnormal widening or ballooning of the dural sac, which may complicate neuraxial anesthesia administration and increase risk of complications.
Full Definition
Dural ectasia refers to the pathological dilatation or widening of the dural sac that surrounds the spinal cord and nerve roots, most commonly affecting the lumbosacral region. This condition can be associated with connective tissue disorders such as Marfan syndrome, Ehlers-Danlos syndrome, or neurofibromatosis, or may occur as an isolated finding. In obstetric anesthesia, dural ectasia presents unique challenges as it may alter the normal anatomy encountered during neuraxial procedures, potentially leading to unpredictable spread of local anesthetics, increased risk of dural puncture, and difficulty in identifying anatomical landmarks. Pregnant patients with known connective tissue disorders should be evaluated for possible dural ectasia, which may influence anesthetic planning and technique selection.
Usage
Usage note: Consider in patients with connective tissue disorders; may require modified anesthetic approach.
In Context
- "MRI imaging revealed dural ectasia, prompting careful consideration of neuraxial anesthesia risks." — Preoperative assessment
- "The patient's history of Marfan syndrome raised concern for possible dural ectasia complicating epidural placement." — Anesthesia consultation note